K4DH — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States

Receiver-side FT8 activity involving K4DH, decoded by SO8OO in southeastern Poland. 275 related FT8 messages, 2 CQ messages, observed on 40m, 20m, across 12 UTC dates. Heard between 2026-06-08 and 2026-08-23.

These are automated observations at the SO8OO receiver, not the station's official logbook. Times are UTC. Decoder S/N describes messages received at SO8OO; inferred entity and location data may be inaccurate for portable, remote or special-event operation.

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Overview

275
Related messages
2
CQ messages
12
UTC dates heard
-5 dB
Mean decoder S/N

Bands

20m 40m
First seen: 2026-06-08
Last seen: 2026-08-23 19:32 UTC

Frequent QSO partners observed at SO8OO

Stations K4DH worked most often, as logged from our receiver:

Activity Heatmap

Observed FT8 exchanges

S/N cells show: decoded at SO8OO / report transmitted by the counterpart. An observed exchange is not a QSL or an official logbook confirmation.

Time UTCBandK4DH S/NCounterpartCounterpart S/NMsgsCapture
08-23 21:31 20m - / +10 KJ1R -13 / - 3 ✓ Closing fragment
08-19 22:46 20m - / -16 F1PBZ +2 / - 2 Partial capture
06-25 03:26 40m - / - F5RRS -22 / - 2 Partial capture
06-22 00:50 20m - / -10 V31DL -6 / - 6 ✓ Closing fragment
06-19 19:03 20m - / -20 RZ1OA -1 / - 3 ✓ Closing fragment
06-17 01:55 40m - / -7 DK7ZT -5 / - 3 Partial capture
06-17 01:51 40m - / 0 KF4AH -7 / - 3 ✓ Closing fragment
06-17 01:43 40m - / -18 DK7ZT -1 / - 4 Partial capture
06-17 01:23 20m - / - KC2NDA -18 / - 2 Partial capture
06-16 02:17 40m - / - F4BYA +4 / - 4 Partial capture
06-16 02:11 40m - / - PA3KUS -16 / - 2 Partial capture
06-16 02:09 40m - / - F4BYA +3 / - 3 Partial capture
06-16 02:06 40m - / - F1IQH +3 / - 3 Partial capture
06-16 02:01 40m - / - F4BYA +6 / - 4 Partial capture
06-15 03:13 40m - / - DL3MIB -4 / - 5 Partial capture
06-15 03:13 40m - / - F4MGP -15 / - 3 Partial capture
06-15 02:46 40m - / -16 DK7ZT -4 / - 4 Partial capture
06-15 02:41 40m - / - F5NNN -9 / - 6 Partial capture
06-15 01:52 20m - / - IK4LZH -8 / - 2 ✓ Closing fragment
06-14 04:35 40m - / -26 IW2DNI -16 / - 8 Partial capture
06-14 04:32 40m - / -24 IW2DNI -13 / - 2 Partial capture
06-14 04:29 40m - / -14 DK7ZT -9 / - 2 Partial capture
06-14 04:28 40m - / - PE1NMM -11 / - 7 Partial capture
06-14 04:27 40m - / -19 PI4DX +6 / - 4 ✓ Closing fragment
06-14 04:24 40m - / -13 F6DZU -1 / - 2 ✓ Closing fragment
06-14 04:24 40m - / - OK1UG +5 / - 3 Partial capture
06-14 04:23 40m - / -11 DK7ZT -8 / - 2 Partial capture
06-14 04:23 40m - / - IW2DNI -12 / - 9 Partial capture
06-14 04:17 40m - / -8 ON3ANY -7 / - 6 ✓ Closing fragment
06-14 04:16 40m - / -10 PI4DX +2 / - 8 Partial capture
06-14 04:15 40m - / -15 F4LNM -5 / - 3 ✓ Closing fragment
06-14 04:13 40m - / -12 DK7ZT -4 / - 2 Partial capture
06-14 04:07 40m - / -22 DJ2DL/QRP -1 / - 4 Partial capture
06-14 04:07 40m - / -19 F1NQP -13 / - 4 ✓ Closing fragment
06-14 04:01 40m - / - IW2DNI -12 / - 4 Partial capture
06-14 04:01 40m - / - OM3WBY +8 / - 6 Partial capture
06-14 03:51 40m - / -16 EB5AL -4 / - 3 ✓ Closing fragment
06-14 00:15 20m - / -19 IZ0GRR -10 / - 9 Partial capture
06-10 02:51 40m - / - PA3KUS -16 / - 2 Partial capture
06-10 02:49 40m - / -24 IZ8DBJ -5 / - 3 Partial capture
06-10 02:37 40m - / - IZ8DBJ 0 / - 3 Partial capture
06-10 02:25 20m - / - 4Z4DX +6 / - 2 Partial capture
06-10 02:09 40m - / - F1IQH +3 / - 2 Partial capture
06-10 02:09 40m - / - IZ8DBJ -2 / - 2 Partial capture
06-10 02:04 40m - / - IZ8DBJ -2 / - 2 Partial capture
06-10 02:04 40m - / - PA1PXL +8 / - 2 Partial capture
06-09 03:04 20m - / - SV4LGX +8 / - 3 Partial capture
06-09 03:02 20m - / - LZ2PAJ 0 / - 3 Partial capture
06-09 02:53 20m - / - V31DL -14 / - 5 Partial capture
06-09 02:44 40m - / - SV1MOZ -4 / - 4 Partial capture

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

20m 
UTC    dB Audio  Message
013915  -6  360  K4DH KI5DXY +06
190330  +4  547  K4DH RZ1OA LP04 (x3)
005045  -5 1185  K4DH V31DL EK57 (x6)
224600  +6 2917  K4DH F1PBZ -16 (x2)
213115 -14 1972  K4DH KJ1R FN32 (x3)
40m 
UTC    dB Audio  Message
014315  +1 1905  K4DH DK7ZT -18 (x4)
014615  +0  484  K4DH EB3JT JN01
015145  -8  590  K4DH KF4AH FM18 (x3)
015545  -8 1905  K4DH DK7ZT -07 (x3)
011130  +2 2733  K4DH IQ4JO JN63
030600  -9  843  K4DH II9RICT -19
032645 -21 1856  K4DH F5RRS JN36 (x2)

Decoder S/N history by band

Daily averages across messages associated with this profile as decoded at SO8OO.